Find out about peritoneal dialysis, what life is like while on it and the prognosis for those suffering from this condition. Learn how long a patient can be on peritoneal dialysis while awaiting kidney transplant.
Erasers are made from either natural or synthetic rubber. Natural rubber is produced from latex that is collected from rubber trees. Water is removed from the latex, increasing the rubber content to 60%. Acid is added to the liquid concentrate in order to produce solid sheets of dry rubber.
6. The yellow color comes from a glossy lacquer made up of castor oil. Castor oil comes from seeds of the castor plant. This can be found in India. 7. Finally, the black lettering found on most pencils is made of carbon black. This can be found in Texas. Given that some of the resources needed to make a pencil is not easily accessed in the U.S., the students should be advised that they have to think about transporting these goods to their pencil factory. They can use land, air,